similar to: Compromise between bitrate, quality and latency

Hi, (this is my first post here) A previous thread, starting Date: Tue 19 Nov 2002 - 06:09:56 EST "[vorbis] need speech and music in one" http://www.xiph.org/archives/vorbis/200211/0142.html expressed needs similar to mine, to encode a lengthy speech at low bitrate. I did some tests initially in September then concluded in December, and I was surprised to find Vorbis to be the best

Dan Nelson (dnelson@allantgroup.com) wrote: > I guess the problem might be oggenc's option parser, then. Given a > stereo 22050hz input file, I can't seem to get oggenc to encode less > than 22kbits. The lowest bitrate it will allow on the commandline (for > 22050hz/2ch input) is -b 30, but if you also add -M 1, it will generate > a file with an average bitrate of 22. $

On 27.11.2017 02:00, YIRAN LI wrote: > I'm using libvorbis in my program and need to encode to target bitrate. I > know libvorbis prefer to use quality scale but I can't use it. > > I've found something at faq http://vorbis.com/faq/#quality > > *For now, quality 0 is roughly equivalent to 64kbps average, 5 is roughly > 160kbps, and 10 gives about 400kbps. Most

I am writing a long-run sound recording application using OggVorbis. The user can adjust sound quality parameter to make balance between storage space and sound quality. The input sound is 22050Hz, mono. To maximize the recording capability on a given storage volume, we want the result bitrate as low as possible. I use -q0 parameter and it produces a 32.0kbps stream. It is too high (our

In testing, I have found that both MP3 and RealAudio 3(!) are much better sounding at bitrates from 8 to 40-something kbps than Ogg Vorbis. This definatly needs drastic improvents and I know that 1.1 will be focusing on improvements in those areas but that seems pretty far off(a few months minimum) which leaves low-bitrate streams sounding pretty bad. --- >8 ---- List archives:

I built ffmpeg2theora from SVN, using libogg 1.1.4, libvorbis 1.2.3 and Thusnelda from SVN. Running ffmpeg2theora --help reports that ffmpeg2theora accepts a range of -2 to 10 for the --audioquality option and a bitrate of 32 to 500 for the --audiobitrate option, but it doesn't appear to actually accept any of the low end numbers. It appears that the lowest acceptable value for

Hi all, I used vorbis several years ago because of its freeness and VBR, but after playing ha.org and getting an mp3-capable discman, I switched to APS and API mp3 encoding. Now, I am liking musepack a lot, but the flexibility is more "there" for the vorbis format, including players, tagging comments (lyrics in the comments - killer idea!), etc.... However, I am a bit worried

The problem is that the mp3 dewdz will be used to looking at bitrates to determine quality, so the solution (as several here say) seems to me to just rip out anything mentioning bitrate from the simple tools. But, they will still see the bitrate in players like winamp. To solve this, why not store the quality setting used when encoding into the ogg file itself ? Either use a field unused when

Hi. Sorry if this is the wrong list - a pointer to the right would be appreciated. I have a number of Ogg files, that have a VBR bitrate of approx. 256 kbps. I have bought a portabel Ogg player (iRiver iFP 795) that unfortunately only support bitrates up to approx. 225 kbps. So my question is, if there is a tool to change the bitrate down to e.g. 220 kbps. I know I can do this with sox, or

I'm going to go out on a limb here and guess Daniel is interested in speex for real time audio conversations between players in a massively multiplayer online game. My bet is that there are very large differences between what a gamer would consider as "good" and an audiophile would consider as "good", based on a long and glorious history of games short changing audio in

El mié, 23-08-2017 a las 08:08 -0700, Jordan Erickson escribió: > Hi José, > > You can use Ices2 to accomplish this - take a look at the docs: > > http://icecast.org/ices/docs/ices-2.0.2/config.html > > (Specifically the <encode> section - looks like you were using some > incorrect parameters which would explain why it wasn't working). > > > >

I'm sorry if this question has been asked before; I've looked through the archives and haven't seen anything. The problem I'm seeing is that oggenc's VBR encoding doesn't seem to pay attention to any sort of bitrate limitation, either the -m or bitrate_hard_min settings. It isn't that it temporarily dips below the minimum; the average for the whole (in this case,

Many of you have read and my "introduction to compressed audio with Vorbis" and given me excellent feedback. But with 1.0 about to hit the streets, I figured I'd freshen it up a bit. [ http://grahammitchell.net/writings/vorbis_intro.html ] In particular, it contains two paragraphs discussing the relative quality of Vorbis vs mp3 at a certain target bitrate. These figures seem

I would like to see the following information added to the FAQ at vorbis.com, appended to the "Audio Quality" section. "Uiver," "boa," and "jonI" from OPN's #Vorbis channel contributed and reviewed it. "What does the 'quality' setting mean?" Beginning with vorbislib 1.0-rc3, audio quality is no longer measured in kilobits per

Hi there, I'm using libvorbis in my program and need to encode to target bitrate. I know libvorbis prefer to use quality scale but I can't use it. I've found something at faq http://vorbis.com/faq/#quality *For now, quality 0 is roughly equivalent to 64kbps average, 5 is roughly 160kbps, and 10 gives about 400kbps. Most people seeking very-near-CD-quality audio encode at a quality

Hello, good morning ! Running Icecast2 and Ices2 with live audio from Line IN, what is the correct way to change the bitrate ?. In the Icecast2 configuration file I set: <mount type="normal"> ????<mount-name>/entzun.opus</mount-name> ????<bitrate>128</bitrate> </mount> But it seems that is not enough since the bitrate does not change. Receiving the

I have noticed that when playing OGGs in Winamp, the bitrate displayed is always much higher than the average bitrate of the file. This was using the plugin that comes with Winamp v2.80 (v1.2 b7) For example, the latest oggenc encoded a song to 77kbps - I verified that this matched the filesize correctly. Apart from the first and last few seconds of the song, Winamp always displays between 85 -

Hi! I'm very impressed with the progress Ogg Vorbis has made, ever since getting that T-shirt at LinuxWorld Expo :-) Using oggenc, I've run into a problem, though: "Mode initialisation failed: invalid parameters for bitrate" This happens when 2 conditions are true: 1) the input file has a sampling rate less than 44100, and 2) the -M parameter is used to specify a maximum

Hi all, I run a CVS version (i dont remember exactly when did i got it )of Ices2/ Icescast2 on a slackware Linux box . I put this section into the Ices2 conf file : [...] <encode> <samplerate>22000</samplerate> <channels>1</channels> <quality>0</quality> <managed>1</managed> <nominal-bitrate>35000</nominal-bitrate>

Use the -V option when encoding and you should get bitrates. "Daniel Vogel" <vogel@epicgames.com> writes: > Could someone post a mapping of quality to bitrate or provide me with a link > where to find this information? > > Thanks, > > -- Daniel, Epic Games Inc. > > --- >8 ---- > List archives: http://www.xiph.org/archives/ > Ogg project homepage: